Filter



April 20, 1937. 1 El HURN 2,077,999

FILTER Filed June 4, 1955 l/ 1 1 i l -f l I4 9 j 3, 3/6 "QD 3 E9 E i2 /Q- of ff 3 a1' J8 2 251 2 2 341- b 30 l ,m E. iA- 0 2? -K QA; u r A K 25% 54' f, v/ Z6,

' u I o w @si 6 E? es'4 f Patented Apr. 20,l 1937 PATENT ori-ics amas FILTER James E. Burn, Saugerties, N. Y., assignor to AThe DeLuxe Products Corporation, La Porte, Ind.

Application June 4, 1935, Serial No. 24,841

6 Claims.

My invention is a method and a mechanism for clarifying and ltering of the lubricating oil in an internal combustion engine, during the operation oi' the engine; and delivering the said oil back to the oil reservoir of the engine substantially at its initial purity.

My device is an improvement upon my former application S. N. 702,529; iiled December 15, 1933; and involves the basic principles contained therein. Y

An important object is the construction of a housing which can be readily demounted, one or all of its ltering portions removed, and renewal iltering portions. immediately installed. Another object is the provision of` a series of super-imposed ltering units adapted to be practically free from channelling of the oil in the* iiltering units, thereby maintaining fresh and eilicient units in the ltering process. p

Other objects will become very apparent to the skilled observer.

An embodimentof my device is shown in the accompanying drawing:

Fig. 1 is a vertical sectional elevation of the device, showing the internal working arrangement.

Fig. 2 is a cross section of Fig. 1, taken in the direction of the arrows 22:

Fig. 3 is a plan view of a disc seated in each individual unit shown in Fig. 2.

As illustrated, the housing consists of three main parts, of which I is a cylindrical body, adapted to contain the major working parts of the device, demountably positioned over the chamber 4 (which is denominated a sump) and enclosed by a top cover 2 seated upon a gasket 3 on the rim or edge of thel cylindrical wall I. 5 isa tubular member xedly seated in the bottom oi' the sump 4 and extends up thru the central portion o f the housing to a point slightly spaced below the rim of wall I; the end portions of said tube 5 being threaded. Into the lower end of the tube 5 there'isgth'readedly inserted a nozzle 6. having an aperture therethru whose smallest diameter is practically equal to the diameter of a bore running through a locknut'member I2 which is threaded into the upper end of tube 5; 6' -is a threaded entreport into nozzle 6. In the lower portion of the sump 4 there is an outlet 'I regulated by a nut 'I' which outlet 1 is provided to clean the sump 4 oi sludge accumulation. 8 is a nut for locking the cover 2 to the cylindrical portion I oi.' the housing; 8' is a shoulder upon the nut 8 adapted to be seated upon a iluid tight gasket 8" in contact A bore I4 in nut 8 extends to a valve seat I9 then thru a smaller bore I0 which registers with a bore I8 in nut I2. A valve I5 is seated in nut 8 tensioned by a spring I6 and a tensioning nut Il; a lateral bore 29 extends from the bore i4 thru one side of the nut 8, slightly spaced from the valve seat I9. Invthe central tube 5 I provide lateral apertures 20 communicating between the chamber of the tube 5 and a channel 21 surrounding the tube 5. Demount- 'ably assembled in the housing I and surrounding the tube 5, spacedly held apart from the tube 5 and the internal wall of the housing I, I provide a series of unit container elements 2I adapted to be superimposed one upon the other, the lowest one resting upon a disc or gasket 36; each of these container units consists of a circular body 2| having its bottom slightly inclined from the outer upright wall toward the center, the said bottom terminating in a bead 22; each said unit has a cover 2d, and which said cover 24 has a series of projections 3d on its outer wall adapted to space apart each said unit from the wall of the housing I, also providing a channel between the outer wall of each unit and the internal wall of the housing I. 'Seated in the bottom ofl each said individual unit 2i I provide a disc 23 having perforations 23 therethru,its inner edge 3i slightly upturned against the inner wall of theunit 2I`, being adapted to be above the apertures 25 inthe wall of the unit and intended to deflect the liquid passing thereinto downward and under the said disc 23, there being also nobs 28 on the lower side of each disc 23 adaptedto support the outer edge of the disc above the iioorof the ,unit 2|.` lEach cover 24 of a unit has a multiplicity of perforations 24 therethru, and a circular indentation 26, into which indentation bead 22 is adapted to be seated to fixedly position each superimposed unit. In the inside upright wall of each unit I provide a series of perforations 25 there-around. 30 is the oil outlet in the upper wall of the housing, slightly spaced from the rim of the housing. 3|' is a bail attached to the cover 24 by cleats 32 adapted to lift the individual unit 23 and its 55 cover 24.` 3l is a ilanged extension of the sump 4 adapted to be the retaining wall for the bottom of the housing I and-sealed by a gasket 36 resting upon a seating 35 in the sump 4. 31 is 5 filtering material,` preferably some form of a nbre, or such like material. e

The operative principles involved in the device include a lter in which there are de mountable unit portions each imposed upon the other.'

in combination withA a base illter, and each separately removable when an individual unit suggests removal and replacement by anew member. The oil enters 6 under engine pressure, is projected fountain-like into the chamber of 5, homogenizing the ingredients; this homogenized oil is forced thru apertures 2l against the blank wall of a lterelement 2l cracking 'and disintegrating it and sharply reducing its velocity and simultaneously precipitating its heavier and deleterious ingredients toward the sump I, and away irom the travel of the oil; the oil being lighter, passes into the individual unit container and is there illtered then passing out of the container top to the channel between the container outer -wall and the wall ofthe housing, then out through the outlet back to the crankcase.

The' device is so arranged that each individual unit of the filtering sections can readily be removed; for instance, simply removing the locking device 8 the cover will be immediately removable, then by taking out the nut I! each Vunit can be removed separately and such new umts as may be desired may be easily replaced 'with aminimumofmess ordirt; ifitbedired to change all ofthe units at one time, on removal of the nut i2 the whole housing down to the sump portion may be removed awayl from any contact with the deleterious deposit in the 40 sump. The individual units may of their teral placed therein, which can be done at a minimum of expense, maximum of emciency, and by the most ordinary unskilled person.

I claim: 1. A iilter comprising a housing enclosing a chamber closed by alfremovahle cover :e the lower portion of the chamber providing a smnp, the upper portion of the chamber providing a filtered oil area; a tubular member vertically positioned axially of the housing containing an oil inlet to the chamber; locking means associated with` the cover adapted to cooperate with the tubular member whereby the parts are lockingly sealed '55 into a unit; a mounting series of individual rmit iiltering members podtioned above the sump and axially positioned with reference tothe tubular member, there being a clearance space between the tubular member and the adjacent iiitering units; outlets from each filtering unit communicating with a spaced area between the outside walls of the nltering units and the enclosing wall of the housing, the said spaced area communicating with the nltered oil area; an 35 outlet from the filtered oil area.

2. A filter comprising a. housing enclosing a chamber closable by a removable cover; a tubube emptied illtering material and new iiltering ma.

lar chamber axially positioned in the hous and iixedly seated in the bottom of the housing, having means to cooperate with a locking means associated with the cover for sealing the chamber; there being in the locking means a valve predeterminin'g the pressure of the oil within the tubular chamber; a sump in the bottom of the chamber; nltering means mounted above the sump coaxial around the tubular member; an oil inlet into the chamber, and an oil outlet from the chamber.

3. A nlter comprising a housing enclosing a chambervclosable by a removable cover; a tubular member axially positioned in the housing and fixedly seated in the bottom of the housing, having means to cooperate with a locking means associated with the cover for sealing the chamber; a sump in the bottom of the chamber; filtering means mounted above the sump coaxial around the tubular member; an oil inlet through the tubular member and an oil outlet from the chamber; means associated with the xedly seat-- ed member and the cover locking member for automatically regulating the pressure of the oil entering the chamber. v

4. In a device for purifying oil a housing enclosing a chamber containing a sump, filtering means mounted above the sump, a cleansed oil space with an outlet therefrom in the upper part of the chamber, a tubular chamber substantially axial of the housing chamber having at its bottom portion an inlet to the tubular chamber from the lubrication reservoir of an engine, said chamber having associated at its upper end a valve for predetermining the maximum :duid

pressure within the tubular chamber', a plurality of individual filtering members coaxial with said tubular chamber there being a clearance space around the tubular member separating the illtering members from the tubular member and providing a liquid e therethrough, means to agitate the liquid to homogeneity inthe tubular chamber, means to forcibly impinge the homogenized liquid against a solid surface crackingy and disintegrating the fluid into the clearance space, means to separate out of the liquid thefheavier ingredients into a sump apart from the lighter portions of the iluid, means to Ypass the lighter portions of the uid into a plurality of individual illtering units and through the same to a channel back to the reservoir of the engine.-

5. A iilter adapted to filter oil', comprising a housing, a central tube within the housing from which incoming oil to be filtered is fed, a removable cover, a plurality of individual nltering units containing a mass of filtering medium packed tightly enough to filter the oil Iwithout channeling, superimposed about the tube, each of said' units having means for admitting oil communicating with the tube, means for removing oilfrom the housing, said units being arranged within the casing to be all removable through said cover.

6. A illter as set forth in claim 5 in which the filtering medium is a mass of brous material.

- l JAMES E. HURN.. 

